EGR Systems
Check Engine Light
Buick Riviera
Ford Explorer XLT

Service Engine Soon code on 95 supercharged Riviera says EGR valve pintle position and same message after cleaning with carb cleaner and even after replacing with salvage yard unit what else can I do?


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Either wire harness or computer. Try bulk head connector at firewall, computer is located behind glove box, cost about $100 at autozone, you have to change out the e-prom from your old unit to new one.